Odpowiedzi

2009-12-03T04:53:00+01:00
1/2x - 3/4y = 0
2/3x + 5/4y = 9
1/2x = 3/4y
2/3x + 5/4y = 9
x = 3/2y
2/3 × 3/2y + 5/4y = 9
y + 5/4y = 9
9/4y = 9
y = 4
x = 3/2 ×4
x = 6